Customer Testimonials

Nothing makes us happier at Parley’s Diesel Performance than hearing from our customers that we’re doing a great job and that they love the results they are getting from their diesel performance upgrades. Here we share with you some of the unsolicited Kudos and “Atta-boys” we’ve received from our customers over the years. Customers just like you!

“I ordered my MBRP exhaust system on Wedensday early afternoon. When I came home from work on Thursday it was sitting on my front porch when I pulled in the driveway. UNBELIVEABLE – what great service. I had to stop & think, I ordered that yesterday. How did they do that? Thanks for the service AND great price, now all I have to do is install it.” - Michael R. – Pennsylvania MBRP S6200409 Stainless 4 Inch Turbo Back Exhaust Ford 7.3L Powerstroke Diesel

“I wanted to let you know that the product I received was exactly what was described and your prompt shipping and emails were excellent. Thank you for the opportunity to purchase this product from you and will buy more products from you in the future.” - Brian C. AMP-Research Power Step Chevy Silverado 6.6L Duramax

“I’m thoroughly impressed with the customer service from you guys. Never had anyone deliver something that fast. Will definitely continue to shop from you guys. Big Thumbs Up!” - Colton V. MBRP Exhaust System Dodge Ram 5.9L Cummins Diesel

“Just wanted to say thank you for the quick shipping. I have received both the Aero 5050XL Muffler and MBRP Exhaust for my Cummins.” - J.Harlock 2006 Dodge Ram 2500 5.9L Cummins Diesel

“Hello, I just wanted to say thanks for the advice and recommending the AFE cold air intake for the Passat TDI! Obviously it is not a night a day difference, but it sounds better and I picked up almost 4 mpg! Perfect fit. I will be ordering the computer chip soon!” - R. Zettel. 2015 Passat 2.0L TDI SEL. AFE 2.0L TDI Dry Intake

“Both of our chips are awesome. It’s like we have a new tractor. We will be buying more chips for our other tractors.” - R. Reiter – Reiter Farms. John Deere 12.5L Common Rail. Agricultural Diesel Solutions Tractor Module

“I just wanted to comment how quickly ya’ll responded to my order and I liked that very much. I ordered a turbo from ya’ll and on the second day it was here. I just wanted to say thank you because now days many companies don’t respond well and take weeks to get a product.” - T. Fitzgerald 1997 Dodge Ram 2500

“I just want to take a moment to thank everyone at Parley’s Diesel Performance. You made my purchase easy and delivered what you promised. When I had an issue, I paid for the fix and you reimbursed me my cost. Y’all are the best! Thanks for giving great customer service.” - M. Cook 6.7L Cummins Dodge Ram

“I recieved and installed the Air Dog II for my F-250 Super Duty. It was an easier instalation than I thought. I must admit I was skeptical as to how much improvement there would be. I was WRONG! That thing is everything they claim and then some. I had already done the DPF Delete and programmed the engine, but when I installed the new Air Dog II fuel pump I was really amazed. Not only does my engine run better, the throttle response was amazing. Seems like my fuel mileage went up a couple more miles per gallon too. Thanks for another GREAT product.” - R. Taylor 2008 Ford F-250 6.4L Powerstroke

“I installed the AT4040XL Aero Muffler and offset pipe. Along with the new S&B Filters cold air intake my mileage has gone from 15 to 19. Thanks for your help.” - Al B. Colorado 2005 Dodge Ram 2500

“I ordered a performance muffler from your company last week. I was amazed to find that you shipped it out the same day. Four days later I had in on my truck. Thank you for your excellent and speedy service.” - B. Davis El Paso, Texas Aero Exhaust AT3030

“Thank you for the great service! I recently purchased two performance mufflers, an Aero AT2525XL and an Aero AT3030XL from you. I’ve installed the mufflers and I’m pleased with the performance. Thank you very much for your professional service.” - Al O. 2001 VW TDI & 1987 MBZ 300TD

“You folks are awesome, I ordered my Quadzilla on the 30th in the afternoon and it arrived on the 31st early. I installed my Quad and played the rest of the day, and WOW WHAT A DIFFERENCE, I blew the doors off a Duramax Yeah Baby!!!!!” – John S. 2000 Dodge Ram 3500 5.9L 24V Cummins Quadzilla Xzillaraider XZT+ Power Module

“Just a quick note. I ordered a Smarty Jr Programmer with a 5 Inch DPF Delete Diesel Exhaust* as well as an EGR Delete Kit from you. I just put all the parts on today and programmed the truck. When I had a code pop up your support team was quick to get me an answer. Thanks for all your support from sale to install and tips and tricks on the code. I am very satisfied with what I received and with your company.” - Rick Z. 2008 Dodge Ram 2500 6.7L Cummins.

“The exhaust sounds awesome and I even get more mpg too! An amazing product!” - L. Timmermans. 2007 GMC Sierra LBZ. MBRP 4" Turbo Back PLM Series with Aero Exhaust 4" Resonated Muffler.

“Hey! Thanks so much for the awesome product! It was so easy to install, and it sounds SO meaty! Just what I needed!” - J. Thompson. 2005 VW Jetta TDI. AFE Intake Kit.

“Thanks for checking up on it for me. I appreciate the customer service I have received from your company and will be sure to let people know.” - N. Bica. 2006 Dodge Ram 2500 SLT. Grand Rock 6" Mitre-Cut Chrome Stack Kit.

“Thank you all for the great parts and service, a very thankful customer.” - M. Mendenhall. 2000 Dodge Ram 2500. Quadzilla Adrenaline and Industrial Injection VP 44 Injection Pump.*

“I just wanted to thank you for the quickest delivery I have ever had on products from the internet. I ordered a diesel tuner at about 1:30 pm on a Tuesday and at 9:30 am Wednesday my doorbell rang and it was here. Now that is fast!” - J. Dickey. 2001 Ford F-250 7.3L. Diablosport Tuner.

“Thank you for the outstanding customer service, great price, and next day shipping. The service I had with Parley’s Diesel was by far the best I have ever experienced with any on-line parts house. I will look to your website first for my Diesel related shopping items, and I will certainly tell my diesel friends about your great prices and service. Thank You.” - S. Mroz. 2005 Dodge Ram 2500. S&B Cold Air Intake Kit and Intake Elbow.

“Hello! You guys set new levels of customer service, something sadly lacking these days. I’m just SO impressed! Thank you, for even though I don’t know your name, I’m very appreciative of the prompt and detailed replies, especially to some international “guy”; you and the company you work for ROCK! Have a great day." - G. Roles, Australia. 2008 VW Golf 2.0L TDI. Snow Performance Stage 3 Water-Methanol Kit.

“19.2 MPG for the trip from my mom’s house and back home. Before installing the Aero muffler and AIRAID intake, the best mileage I’d every gotten on that trip with a stiff tailwind was 16 MPG. WOOHOO!!!!!” - L. Phillips. 1999 Dodge Ram. Aero Exhaust Turbine Muffler, AIRAID Intake Kit.

“I just wanted to say thanks for the great customer support and service. Although there were some shipping company errors, everything worked out in the end. Parleys did everything they could to resolve the issues and communication was outstanding! I will tell everyone I know about your excellent customer service and great products.” - M. Derzak. 2001 Dodge Ram 2500. AirDog Fuel System.

“I just wanted to let you know that I installed the power module on my 06 Jetta tdi. Big difference!!! Acceleration, response and torque greatly improved. Initial start turbo-lag gone. Also same driving style as before, now requires half of the amount of gas pedal travel. Your customer service follow-up is great too! Thank you!” - Theo. 2006 VW Jetta TDI. Bully Dog Rapid Power Module.

“Parleys Diesel isn’t a faceless internet e-commerce site. One of the staff called me back promptly after I had placed my order and checked on a few of the questions I had about the product. I was very impressed” - Brad. 2002 Duramax LB7. Mag-Hytec Deep Transmission Pan.

“I have an 05 Dodge Cummins truck with an Edge Juice with Attitude and an AFE air intake, so I wanted to finish off the deal with an exhaust. I asked the guys at Parleys Diesel Performance and they suggested the Areo Turbine Muffler. I love it. It sound nice, gave a little more HP and better gas mileage, but best is the lower EGT. I got it for a great price , and I’d recommend it to anyone intersted in adding more performance to their truck.” - Max F., Colorado. 2005 Duramax LB7. Aero Exhaust Muffler.

“I just received the Flashpaq for my 2006 Dodge diesel, and I am very happy. Great shipping, smart call-back from one of your people, and the product is exactly as advertised. The fuel savings is substantial. You folks are running a great business…Feel free to use the testimonial. We just hit 24 mpg. I am still amazed. Thanks for everything.” - Dave DeCoeur, Arkansas. 2006 Dodge Ram 2500 5.9L Cummins. SuperChips Flashpaq Programmer.